libc/sys/mmap.c

1.4  cgd /*	$NetBSD: mmap.c,v 1.4 1995/02/27 11:23:07 cgd Exp $	*/
1.4  cgd
1.2  cgd /*
1.2  cgd  * Copyright (c) 1992, 1993
1.2  cgd  *	The Regents of the University of California.  All rights reserved.
1.2  cgd  *
1.2  cgd  * Redistribution and use in source and binary forms, with or without
1.2  cgd  * modification, are permitted provided that the following conditions
1.2  cgd  * are met:
1.2  cgd  * 1. Redistributions of source code must retain the above copyright
1.2  cgd  *    notice, this list of conditions and the following disclaimer.
1.2  cgd  * 2. Redistributions in binary form must reproduce the above copyright
1.2  cgd  *    notice, this list of conditions and the following disclaimer in the
1.2  cgd  *    documentation and/or other materials provided with the distribution.
1.2  cgd  * 3. All advertising materials mentioning features or use of this software
1.2  cgd  *    must display the following acknowledgement:
1.2  cgd  *	This product includes software developed by the University of
1.2  cgd  *	California, Berkeley and its contributors.
1.2  cgd  * 4. Neither the name of the University nor the names of its contributors
1.2  cgd  *    may be used to endorse or promote products derived from this software
1.2  cgd  *    without specific prior written permission.
1.2  cgd  *
1.2  cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.2  cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.2  cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.2  cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.2  cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.2  cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.2  cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.2  cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.2  cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.2  cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.2  cgd  * SUCH DAMAGE.
1.2  cgd  */
1.2  cgd
1.2  cgd #if defined(LIBC_SCCS) && !defined(lint)
1.4  cgd #if 0
1.4  cgd static char sccsid[] = "@(#)mmap.c	8.1 (Berkeley) 6/17/93";
1.4  cgd #else
1.4  cgd static char rcsid[] = "$NetBSD: mmap.c,v 1.4 1995/02/27 11:23:07 cgd Exp $";
1.4  cgd #endif
1.2  cgd #endif /* LIBC_SCCS and not lint */
1.1  cgd
1.1  cgd #include <sys/types.h>
1.2  cgd #include <sys/mman.h>
1.1  cgd #include <sys/syscall.h>
1.1  cgd
1.2  cgd /*
1.2  cgd  * This function provides 64-bit offset padding that
1.2  cgd  * is not supplied by GCC 1.X but is supplied by GCC 2.X.
1.2  cgd  */
1.1  cgd caddr_t
1.1  cgd mmap(addr, len, prot, flags, fd, offset)
1.2  cgd 	caddr_t addr;
1.2  cgd 	size_t	len;
1.2  cgd 	int	prot;
1.2  cgd 	int	flags;
1.2  cgd 	int	fd;
1.2  cgd 	off_t	offset;
1.1  cgd {
1.1  cgd
1.3  cgd 	return((caddr_t)(long)__syscall((quad_t)SYS_mmap, addr, len, prot,
1.3  cgd 	    flags, fd, 0, offset));
1.1  cgd }